How to Monitor a Disk Path

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Perform this task to monitor disk paths in your cluster.

The phys-schost# prompt reflects a global-cluster prompt. Perform this procedure on a global cluster.

This procedure provides the long forms of the Oracle Solaris Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical.

Note - You can also enable monitoring of a disk path by using the Oracle Solaris Cluster Manager browser interface. For Oracle Solaris Cluster Manager log-in instructions, see How to Access Oracle Solaris Cluster Manager.

Assume a role that provides solaris.cluster.modify authorization on any node in the cluster.
Monitor a disk path.
```
# cldevice monitor -n node disk
```

Verify that the disk path is monitored.
```
# cldevice status device
```

Example 52 Monitoring a Disk Path on a Single Node

The following example monitors the schost-1:/dev/did/rdsk/d1 disk path from a single node. Only the DPM daemon on the node schost-1 monitors the path to the disk /dev/did/dsk/d1.

# cldevice monitor -n schost-1 /dev/did/dsk/d1
# cldevice status d1

Device Instance   Node           Status
--------------- ---- ------
/dev/did/rdsk/d1   phys-schost-1 Ok

Example 53 Monitoring a Disk Path on All Nodes

The following example monitors the schost-1:/dev/did/dsk/d1 disk path from all nodes. DPM starts on all nodes for which /dev/did/dsk/d1 is a valid path.

# cldevice monitor /dev/did/dsk/d1
# cldevice status /dev/did/dsk/d1

Device Instance   Node           Status
--------------- ---- ------
/dev/did/rdsk/d1   phys-schost-1 Ok

Example 54 Rereading the Disk Configuration From the CCR

The following example forces the daemon to reread the disk configuration from the CCR and prints the monitored disk paths with status.

# cldevice monitor +
# cldevice status
Device Instance              Node               Status
---------------              ----               ------
/dev/did/rdsk/d1             schost-1           Ok
/dev/did/rdsk/d2             schost-1           Ok
/dev/did/rdsk/d3             schost-1           Ok
                             schost-2           Ok
/dev/did/rdsk/d4             schost-1           Ok
                             schost-2           Ok
/dev/did/rdsk/d5             schost-1           Ok
                             schost-2           Ok
/dev/did/rdsk/d6             schost-1           Ok
                             schost-2           Ok
/dev/did/rdsk/d7             schost-2           Ok
/dev/did/rdsk/d8   schost-2   Ok